Grading and scraping machine



2 Sheets-Sheet l.

Patented Aug. 31,1897.

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(No Model.)

L.HEUBRIVIAMI. GRADING AND SGRAPING MACHINE.

2 Sheets-Sheet 2.

(No Model.) f J. HEUERMANN.

GRADING AND SGRAPING MACHINE.

Patented Aug. 31,1897.

UNITEDl 'STATES PATENT Brien.

-GRADING'AND scRAPlNc MACHINE.

SPECIFICATION forming part of Letters'latnt No. 588,992, dated August31, 1897.

Application filed February 23,1897. Serial No. 624,517. (No model.)

To all whom it may concern:

Be it known that I, 'JOHN HEUERMANN, of Oak Park, Illinois, haveinvented certain new and useful VImprovements in Grading and ScrapingMachines, of which the following is a specification.y 1

My present invention vrelates to improvef ments on machines of the classfor which Letters Patent .were granted to me June 25, 1895, .No 541,546,and March 10, 1896, No. 556,313.`

Myimproveme'nts consist in the addition of certain devices or parts andin an improved construction of some of the parts shown-in my saidprevious patents.

My improved scraper and grader comprises the following elementalparts-Wiz., a wheeled truck arranged at therear of vthe machine and enwhich said rear end is carried; a

scraper-frame adjustably mounted on said,

able levers and connections whereby the.

front end of the machine may be raised for moving from place to place orlowered into position for use. The yiirst of my said patents describesandshows the wheeled truck and the adjustable main frame carrying thescraper, and the second of my said patents' describes and claims thebreaker-beam.

My present improvements relate more particularlyto means whereby thefront end of the machine can be raisedl and lowered from the rear end ofthe machine; to the provision of an adjustable breaker-beam;V to a novelconstruction'and arrangement of the gage-V in Fig. 3. `gent constructionembraces the pull-rods 16, pivotally connected to the swinging levers17, `each having a stud 18, sliding within a slot freedom of movement,and to a novel construction and arrangement of the levers andcarrying-wheels.

My improvements are shown in the accompanying drawings, in which;

Figure 1 is a plan view. ,'Fig. 2 is a side elevation showing the mainframe and supplemental frame raised asfor transportation. Fig. 3 is anopposite side elevation. Fig. 4 is a plan view of the machine with thebreaker and supplemental frame removed, and Fig. 5 is a detail showing-the connection of the main and supplemental frame timbers.

In thevdrawings, let 6 represent the truckframe and 7 thecarrying-wheels thereof.

8 and 9 represent the longitudinal timbers of the main frame, which arearranged near together, `the member 9 being provided with a clevis 10,to which the draft-animals may be attached when the supplemental frameis detached.

11 represents the scraper, which is arranged diagonally to the line ofdraft and cut and is secured to the main-frame member 12.

13 and 14 represent the rear main-frame members, and 15 an operatorsplatform.

The carrying-wheels for the front end of the machine are mounted on thelongitudinal members of the main and supplemental frames in front of thescraper and behind the breaker-beam. A system of levers is ,providedwhereby the frames can be raised and lowered with reference tofthesupportingwheels so as to bring the scraper and breakers into contactwith the surface or to raise them above the surface for transportation,as seen This system of levers in my presor way 19 in the end of a lever20, pivoted upon the bracket 2l. The front end Yof the lever 20 ispinned to a sleeve 22,which forms a bearing for the eXtende'd shank orstem 23 of a wheel 24,said stem thus having a sprocketbearing in thesleeve. The stem is provided with a collar 24a, and the lower end of thevsleeve is provided with a collar 24J), bearing on the shank of thestem. By means of the rods 16 the levers 2O are tilted upon theirpivots, thus causing the front end of the machine to be raised orlowered. The levers 2O recip- IOO recate between the perforated guides25, and by means of pins passed through these perforations the frame maybe supported in the elevated position. The rods 1G are oset to providethe handles 1G", whose extremities are guided in the stirrup and may belocked behind the shoulders thereof.

2G represents a gage-wheel whose axle is journaled in the angles of thepivoted arms 27 28, the latter having a quadrant-shaped member 2S, whichis perforated. The upper ends of the arms 27 2S are joined by a rod orround 29, and the gage-wheel may be fixed at any desired elevation by apin passed through the perforated quadrant 28 into the holes of astandard 30, secured to the front end of the framework. These arms, theaxle, and the rod constitute a swinging frame, and a long axle may thusbe used and suitably supported.

The supplemental frame consists of the front members 31 3l and themember 32, so attached to the main frame that they may be disconnectedtherefrom. The rear end of member 32 has a hook-aud-eye connection, andthe members 3l 3l may be secured to the main-frame timber 9, as shown inFig. 5. The breaker-beam is marked 33 and is provided with a series ofblunt-pointed shovels 3l,which are preferably detachably connected tothe beam, thereby permitting them to be replaced by shovels or devicesof other forms adapted to the `particular work to be done. Thebreaker-beam is adjustably connected to the frame-timbers by brackets 35and chains 3G. Levers 37 are pivoted to the brackets 35; also at theirextremities to the main frame. These levers afford means for raising andlowering the breaker-beam independently of the front end of the frame,so that it maybe set to cut to any desired depth. The levers 37 may bepinned to slotted standards 3S after the adjustment is made. A driversseat is shown at 10, adj ustably mounted on the pole al, said pole beingpivoted at its rear end to the mainframe and adapted to swing betweenthe frame members 3l 3P. It is supported also by a caster-wheel 39. Atthe front end of the frame member 2 a gage-shoe 4l is provided, the rearend of this shoe having a slotted plate 42, sliding over the stem of asetbolt f3. A plow i is carried upon the mainframe timbers S and 9between the breakerbeam and the point of the main scraper. Thefender-rollers 45 are journaled on vertical pivots on the side of themachine to prevent injury by collision with the curbing of a roadway orother fixed obstruction.

The rear end of the main frame is adjusted vertically by means of abell-crank 4G, pivoted at 47 to the truck-frame, one of its arms havinga roller 4S bearing upon the under side of the main frame. The upper endof the bell-crank is connected by a link -ll with the pull-rod 1G, sothat the adjustment of both ends of the main and supplemental frames maybe effected simultaneously from the rear end of the machine.

This machine may be used for filling trenches, to grade earth-surfaces,orto spread paving materials. lVhen employed for filling trenches, thebreaker-beam and its frame are removed and the draft-animals will beattached to the main frame by the clevis 10. ln grading under normalconditions in soft cart-h the plow makes the initial cut and determinesthe lateral limit of the grading, but where the surface material is hardthe breaker-beam, provided with suitable plow-points, is employed, thusloosening hard earthy materials or stones preliminary to the action ofthe main scraper. The latter has a cutting edge, so that it will eut thesurface, spreading the earth loosened by the plow-points and also thatdislodged by the scraperitself. The plow in this work makes the initialcut and determines the side limit ofthe grading,while the main scraperlevels the surface and provides a smooth track for the truck-wheels. Thebreaker-frame will also be employed where itis desired to spread pavingmaterials, such as broken stone and the like, the shovels being of suchform and material as to adapt them to the purpose. rl`hesupporting-wheels are located in the rear of the breaker-beam, so thatthey have a clear track, and also because the frame is thus supportednear its middle, and consequently is morev easily adj usted.

The adjustable gage-wheel 2G may be placed upon the outside of theframework upon the projecting end of its axle, as shown by the dottedlines in Figs. l and 4, and in this position travels on the curb whenthe lnachine is making its first traverse in preparing the subgrade forstreet improvements, the superuous earth being removed previously to adepth of two or three inches above the proposed grade. The machine beingproperly set so as to determine the slope from the curb to the centerline of the street the first cutis made adjacent to the curb. Followingthis operation the grading is done from the summit of the street withthe gage-wheel on the edge of the curb, and the operator will by meansof the levers control and adjust the machine so as to make the properslope toward catch-basins or sewer-traps.

By the use of a single machine all of the operations of grading astreet, the filling of trenches, and the spreading of the pavingmaterial maybe effected rapidly and economically.

I claiml. In a machine of the class described, the combination with amain frame provided with a scraper, of a supplemental frame detachablyconnected with the main frame and a breaker-beam adjustably connected tothe main frame and supplemental frame in front of the scraper,substantially as described.

2. In a machine of the class described, the combination with a mainframe provided with a scraper and mounted upon a supportingtruck, of asupplemental frame provided with IOO IIO

a breaker-beam and a draft-pole or tongue pivoted to the main frame inthe rear of the scraper and having suitable supports or guides on thesupplemental frame for its swinging end, substantially as described.

3. In a machine of the class described, the combination with the mainframe, a truck for supportingv the rear end thereof, a scraper mountedon the main frame, a supplemental frame having a breaker-beam attachedthereto, and vsupporting-wheels whose journals are slidably connectedwith the main frame and supplemental frame respectively, between thescraper and the breaker-beam, substantially as described.

4. The combination in a scraper and grader of a frame having antruck forsupporting'its rear end, and carrying-wheels on which the frame is adjustably mounted, a scraperv located in front of the truck, abreaker-beam located in front of the supporting-wheels, said supporting-wheels having shanks or journals adapted to slide in bearings on theframe, levers connected thereto, said levers being pivoted upon the mainframe and connections extending from the said levers to the rear of theframe whereby the levers may be rocked on their pivots and the front endofY the frame raised' and lowered, substantially as described.

5. A frame-tilting mechanism comprising in combination with'the frame,supportingwheels located between the ends of the frame, the journals ofsaid wheels having a sliding bearing upon the frame, levers connected tosaid extended bearings, said levers being pivoted between their ends, apull-rod, and a swinging arm, having a slot-and-pin connection with thelover, substantially as described.

6. In a scraper and grader the combination with a frame, of a gage-wheellocated at the front end thereof, a pivoted frame'in which thegage-wheel is journaled, and the journal of said gage-wheel beingextended laterally from the frame, whereby said gage-wheel may bemounted so as to travel within the limits of the frame or outsidethereof, substantially as described.

7. In a scraper and grader the combination with the main frame, having ascraper mounted thereon, a supplemental frame having a breaker-beammounted thereon, and an adj ustable gage-shoe at the outer angle of saidsupplemental frame, substantially as described.

8. In a lmachine of the class described, the combination, with a mainframe provided with a scraper and mounted upon a supportingtruck, ot' asupplemental frame provided with a breaker-beam, and a draft-pole ortongue pivoted to the main frame in rear of the scraper, extendingforward of the supplemental frame, and there provided with a supportingcaster-Wheel, substantially as' described.

JOHN HEUERMANN.

